---
import config from 'virtual:starlight/user-config'

import LanguageSelect from 'virtual:starlight/components/LanguageSelect'
import Search from 'virtual:starlight/components/Search'
import SiteTitle from 'virtual:starlight/components/SiteTitle'
import SocialIcons from 'virtual:starlight/components/SocialIcons'
import ThemeSelect from 'virtual:starlight/components/ThemeSelect'

import VersionSelector from '../VersionSelector.astro'

/**
 * Render the `Search` component if Pagefind is enabled or the default search component has been overridden.
 */
const shouldRenderSearch = config.pagefind || config.components.Search !== '@astrojs/starlight/components/Search.astro'
---

<div class="header sl-flex">
  <div class="title-wrapper sl-flex">
    <SiteTitle {...Astro.props} />
  </div>
  <div class="sl-flex">
    {shouldRenderSearch && <Search {...Astro.props} />}
  </div>
  <div class="sl-hidden md:sl-flex right-group">
    <VersionSelector />
    <div class="sl-flex social-icons">
      <SocialIcons {...Astro.props} />
    </div>
    <ThemeSelect {...Astro.props} />
    <LanguageSelect {...Astro.props} />
  </div>
</div>

<style>
  .header {
    gap: var(--sl-nav-gap);
    justify-content: space-between;
    align-items: center;
    height: 100%;
  }

  .title-wrapper {
    /* Prevent long titles overflowing and covering the search and menu buttons on narrow viewports. */
    overflow: hidden;
  }

  .right-group,
  .social-icons {
    gap: 1rem;
    align-items: center;
  }
  .social-icons::after {
    content: '';
    height: 2rem;
    border-inline-end: 1px solid var(--sl-color-gray-5);
  }

  @media (min-width: 50rem) {
    :global(:root[data-has-sidebar]) {
      --__sidebar-pad: calc(2 * var(--sl-nav-pad-x));
    }
    :global(:root:not([data-has-toc])) {
      --__toc-width: 0rem;
    }
    .header {
      --__sidebar-width: max(0rem, var(--sl-content-inline-start, 0rem) - var(--sl-nav-pad-x));
      --__main-column-fr: calc(
        (
            100% + var(--__sidebar-pad, 0rem) - var(--__toc-width, var(--sl-sidebar-width)) -
              (2 * var(--__toc-width, var(--sl-nav-pad-x))) - var(--sl-content-inline-start, 0rem) -
              var(--sl-content-width)
          ) / 2
      );
      display: grid;
      grid-template-columns:
        /* 1 (site title): runs up until the main content column’s left edge or the width of the title, whichever is the largest  */
        minmax(calc(var(--__sidebar-width) + max(0rem, var(--__main-column-fr) - var(--sl-nav-gap))), auto)
        /* 2 (search box): all free space that is available. */
        1fr
        /* 3 (right items): use the space that these need. */
        auto;
      align-content: center;
    }
  }
</style>
